Removable crossbar for buckles



May 10 1927. 1,628,501

I. R. LEDERER REMOVABLE CROSSBAR FOR BUCKLES Filed June 23 1926 IN V EN TOR.

Patented May 10, 1927.

UNITE star:

series;

i IRVING R. LEDERER, F PROVIDENCE, RHODE'ISLAND.

REMOVABLE CROSSBAR FOR BUCKLES.

Application filed June 23, 1926; Serial No. 117,993.

Ihis invention relates to an improved construction of removable cross bar for buckles and other similar articles; and the object of this invention is to provide such a cross bar which is adapted to lit between the side arms of the buckle or other device and to mount a pivot pin in the tubing, the same being of a diameterless than that of the inside of the V lVith these and other objects in view, the

invention'consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims. 7

In the accompanying drawings:

Figure 1 is a front View illustrating my improved connector cross bar as applied to the bails of a wrist watch.

Figure 2 is a perspective view showing the short length of tubing that forms the outer shoulder of the cross bar.

Figure 3 shows one form of pivot pin having a middle portion offset from the axis of its end portions.

vFigure 4 is a sectional elevation illustrating the pivot pin as set into the tubular cross bar with its body portion offset to engage the inner wall of the tubing.

Figure 5 shows the cross bar as applied between the side arms of a buckle.

Figure 6 is a modificationillustrating the body portion of the pivot pin as offset laterally on both sides of its axis. r 1

Figure 7 shows this modified form mounted in the tubular cross bar,

It is found in the practical construction and operation of buckles such as wrist watch buckles and other articles such for instance as the bail members of wrist watches and other devices, of advantage to provide a cross bar which is removably mounted in the arms of the buckle or bails to permit it to be passed through the permanently formed eye in the ends of the wrist strap, and to form such a removable bar withoutthe use of springs; and to accomplish this in a simple and effective way, I have provided tubing of a length to fitbetween the side arms of the device to which it is connected and in which a pivot pin is mounted, the body of the pin which is inclosed within the tubing being provided with a lateral oifset portion to engage the side walls of the tubing Whereby the pin may be moval endwise in the tubing and be irictionally retained in any adpisted position therein; and the followingis a detailed description of the present embodiment of my invention and showingone construction of cross bar by which these advantageous results may be accomplished With reference to the drawings, 10 designates a buckle having side arms 11' which are pierced at 12 to receive the ends of the pin in the cross bar 13. This cross bar is constructed of a short'length of tubing 1% of a length to it between the arms'll.

iVithin this tubing, I have mounted a pivot pin 15, the same being of a diameter smaller than the inner diameter of the tub ing and ofa length greater than the length of the tubing to extend beyond both ends thereof, the ends oi the tubing being turned inwardly as at 16 to provide bearings for the extending endportions 17 of the pin.

The body portion of the pin offset laterally from the axis of its end portions as at 18, to rest against the inner wall of the tubing and exert the required pressure there against, and this offset portion is of a length less than that of the tubing to permit of an endways movement of the pin in the tubing sufficient to house either one of the'extending end portions of the pin within the tubing when desired. In other words, the pin may be moved endways until its extremity is flush with the end of the-tubing at which time the inclined oii'set shoulder 19 of the pin will bring up against the inturned endor the tubing thereby forming a stop for limiting further movement of the pin.

This offset portion 18 is arranged to bear with sufficient pressure against the inner surface of the tubing so as to frictionally retain this pivot pin in any desired adjusted position therein so that when it is desired to remove the cross bar from be tween the arms of the buckle, it is only necessary to force inwardly one end of the pin causing it to slide in this tubing until this end is flush with the end of the tubing, at which time this end of the tubing may be moved laterally out of engagement with its arm and then endwise to withdraw the opposite end of the pin from the bearing hole in the opposite arm.

This cross bar may be applied equally well to the side arms 20 of" the Wrist watch bail 21 and to extend through an eye portion in the end oi the Wrist strap 22 to secure this strap end to the bail.

In some instances, instead of forming a single ol'l set portion in the body ol. the pivot pin, I may provide a double oil's-ct portion 23, as shown in Figures 6 and 7', whereby opposite portions of the pin body are caused to extend on opposite sides of its axis to engage the opposite inner walls Off the tubing, as illustrated in Figure 7.

My improved cross bar is very sii'nple and practical in construction, is inexpensive to manufacture and eilcetire in its operation and by its use the ends of a \vristbiuul or the like may be readily connected to or dis connected from a buckle, \vateh bail or other device in which this cross bar is employed.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being delined and limited only by the terms oi the armended claims.

I claim:

ll. In a device of the cliai-arter described having a pair of perloratial side arms. a. tubular cross bar extending between said arms, a pivot pin in said tube at a diameter less than that of the inside of the tube and of a length greater than that ol? the tube with its opposite end portions extending in substantially axial aligmnent beyond both ends thereof, the ends of the tube being reduced to form central bearii'igs tor the protruding ends of the pin, and the body of said pin being otfset laterally within the tube to friot-ionally engage the Walls thereof and permit of a. relative endways movement and be retained in adjusted position within the tube.

2. In a device. o'l the character deecribial having a pair of perforated side arms. a tubular cross bar extending between said side arms, a pivot pin in said tube of a diameter less than the inner diameter oi.

said tul. and of a length greater than that oi said tube with its opposite end portions extending substantially in axial alignment into said perforations in said arms, the ends oi the tube being rolled inwardly providing central bearings for said pin therein, the bod of the pin within the tube being ollset laterally for a distance less than the length of the tube, the ends oi. the oliset portion being set on an obtuse angle to the axis of the end portion of the pin, said. ol fset portion trictionally engaging the inner surface oi the tube to trictionally retain the pin in adjusted position Within the tube.

3. In a device of the character described having a pair of perforated side arms, a tubular cross bar extending between said side arms, a pivot pin in said tube of a diameter less than the inner diameter of said tube and of a length greater than that of said tube with its opposite portions extending substantially in axial alignment into said perforations in said arms, the ends of the tube being turned inwardly providing central bearings for said pin therein, said ollset portions being set on an obtuse angle to the axis of the pin and being of a length less than that of the tube to permit of an endways movement of the pin in the tube sufliciently to house one of the extending end portions of the pin Within the tube flush with the end thereof when desired to permit the positioning and ,I'QlllQVfLl: of the bar to. and from operating position.

at. In a device of the character described haying a pair of perforated side arms, a tuluilar cross bar extending between said side arms, a pivot pin in said tube of a. dian'icter less than the inner diameter of said tube and ot' a length greater than that at said tube With its oppositev end portions extending substantially in axial alignment into said perforations in said arms, the ends of the tube being turned inwardly provid ing bearings for said pin therein, the body of the pin within the tube being oli'set laterally on opposite sides of its axis to frictionally engage the opposite inner side walls at the tubing.

In testimony wln-zrcol I allix my signature.

IRVING 'R. LEDERER.

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